Technical information

Chapter 2: AT+i Commands Reference
May 31, 2008 AT+i Commands Reference Manual 2-35
+iLSST - Get a Listening Socket's Active Connection
Status
+iSST - Get a Single Socket Status Report
I/<sock handle> Upon successfully opening a TCP listening socket, a socket handle is
returned. The socket handle <sock handle> is in the range 10..11 and used
to reference the socket in all following socket commands.
I/ERROR Otherwise.
Syntax: AT+iLSST:<hn>
Retrieves handles of active socket connections established through the
listening socket identified by <hn>.
Parameters:
<hn> A TCP listening socket handle of an open listening socket.
Command Options:
<hn> Must have been obtained by a previous AT+iLTCP command during the
current Internet session.
Result Code:
I/(<hn
1
>,…,<hnBacklog>) A list of active socket handles. The list contains <backlog> elements,
where <backlog> was used when opening the listening socket identified
by <hn>.
Where,
<hn
i
> >=0 : A handle to an active connected socket
=-1 : No connection has been established.
I/ERROR If <hn> is not an open listening socket, or otherwise some error
occurred.
Syntax: AT+iSST:<hn>
Retrieves a socket status report for a single socket. This is a subset of the
general AT+iRP4 report command.
Parameters:
<hn> A TCP/UDP socket handle.
Command Options:
<hn> Must have been obtained by a previous execution of an AT+iSTCP or
AT+iSUDP command during the current Internet mode session. Or a
socket accepted by a listening socket.
Result Code: